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Korea / Company briefSources checked 2026-10-26

Kuhnil Pharmaceutical

A pharmaceutical company focused on central nervous system, digestive and cardiovascular prescription drugs, making and selling products such as the dyslipidemia combination Rosumega, the prolonged-release melatonin tablets Circadin and Slenyto, and the inhaled budesonide Pulmican.

Rosumega

Marketed

Dyslipidemia combination that puts rosuvastatin and omega-3 in one capsule using a patented multi-layer capsule coating; co-promoted with Youngjin Pharm since May 2025.

Slenyto

Approved

Melatonin treatment for sleep disorders in children and adolescents; a 3 mm mini-tablet with patented prolonged-release technology keeps melatonin levels for 8 to 10 hours after bedtime. In July 2026 its indication was extended from autism spectrum disorder to ADHD-related sleep disorders.

Circadin

Marketed

Prolonged-release melatonin 2 mg tablet developed by Israel's Neurim Pharmaceuticals for primary insomnia in patients aged 55 and over; imported since 2014, it moved to in-house production after a domestic manufacturing approval in July 2026.

Pulmican

Marketed

Inhaled budesonide suspension for bronchial asthma and acute bronchitis in young children; the company has expanded production equipment fourfold from 2024 and also manufactures versions for other drugmakers under contract.

Completion reported

Expanded production equipment for the inhaled budesonide Pulmican fourfold from 2024 and took on contract manufacturing for products of five drugmakers, including those of Youngjin Pharm and Penmix.

Announced

Renewed the Rosumega co-promotion agreement with Youngjin Pharm for two years; the first one-year agreement was signed in May 2025.

Completion reported

Received a domestic manufacturing approval for Circadin prolonged-release 2 mg tablets and withdrew the import approval held since 2014, moving to in-house production.

Announced

Extended Slenyto's indication from sleep disorders linked to autism spectrum disorder to sleep disorders in children and adolescents with ADHD; the company says it is the only treatment approved for this use in Korea.

Sources & coverage 6

A brief based on selected official material, not an exhaustive product or vacancy list.

  1. 건일제약, 소아청소년 불면증 치료제 '슬리나이토' ADHD 적응증 확대 ↗약업신문 · Published 2026-07-29 · Sources checked 2026-10-26
  2. 건일제약, 외형 조정 속 순이익 방어…상품 확대·현금흐름 흑자 ↗메디파나뉴스 · Published 2026-04-08 · Sources checked 2026-10-26
  3. 영진약품, 건일제약과 '로수메가' 공동판매 파트너십 확대 ↗메디파나뉴스 · Published 2026-07-07 · Sources checked 2026-10-26
  4. 건일제약, '서카딘' 제조 품목허가 취득 … 수입 → 자체 생산 체제 전환 ↗헬스코리아뉴스 · Published 2026-07-16 · Sources checked 2026-10-26
  5. 건일제약, 생산력 4배 늘자 '풀미칸' 위수탁 확대 ↗약사공론 · Published 2026-03-09 · Sources checked 2026-10-26
  6. 건일제약, '슬리나이토' ADHD 수면장애 적응증 확대 ↗메디파나뉴스 · Published 2026-07-29 · Sources checked 2026-10-26